CN207953626U

CN207953626U - Tweezers with sounding instruction electric discharge

Info

Publication number: CN207953626U
Application number: CN201820367262.5U
Authority: CN
Inventors: 谭波; 周建华
Original assignee: Hunan University of Technology
Current assignee: Hunan University of Technology
Priority date: 2018-03-19
Filing date: 2018-03-19
Publication date: 2018-10-12
Anticipated expiration: 2028-03-19

Abstract

The utility model discloses the tweezers with sounding instruction electric discharge, it is engaged body including two tweezer arms and a herringbone, tweezer arm is made of tweezer head and tweezer valve, one of tweezer arm is made of a tweezer head and a tweezer valve, tweezer head is metallic conductor, and tweezer valve is divided into as outwardly and inwardly, the outside of tweezer valve is insulating materials, the inside of tweezer valve is embedded with the first pin, the discharge paths of electric discharge phonation unit and second pin composition, first pin is connected with one end of electric discharge phonation unit, second pin is connected with the other end of electric discharge phonation unit, the phonation unit that discharges includes rectifier bridge DB, filter capacitor C, driving circuit and piezoelectric buzzer HD.The utility model provides the tweezers with sounding instruction electric discharge, design simple, reasonable for structure, structure conveniently, a kind of convenient and efficient working method is brought when being not only able to carry out safety and nondestructive wound band sounding instruction electric discharge to capacitance, and electric appliance can be detected to practitioner.

Description

Tweezers with sounding instruction electric discharge

Technical field

The utility model is related to tweezers, are a kind of tweezers for being related to discharging with sounding instruction more specifically.

Background technology

Capacitance is the various common devices of electricity consumption instrument and equipment will store charge once energization, overhauling or testing If not discharging in advance in the process, easily make one to be hindered by electricity if hand touches, or thus caused secondary damage, therefore in detection circuit When, for practitioner, usually to the capacitance on circuit board, using the strategy of " first discharge, then overhaul ".Currently put to capacitance The tool of electricity generally uses tweezers, bottle opener and conducting wire etc. artificially to be discharged, when especially capacitance is bigger, according to direct Discharge mode, due to metal impedance very little, electric current is relatively large, the tool of easy ablation circuit board and electric discharge, according to dedicated Electric discharge tool, inconvenient to carry, use is uneconomical.Lack on Vehicles Collected from Market can safely, not damaged, band sounding indicate, and again The electric discharge tool of convenient and efficient.

Invention content

In view of this, the utility model is intended to provide a kind of tweezers with sounding instruction electric discharge, practitioner can be overcome Using directly to defect caused by capacitance electric discharge.

In order to realize that the purpose of foregoing invention, the utility model specifically provide the forceps technique scheme with sounding instruction electric discharge It is：

It is engaged body including two tweezer arms and a herringbone, one of tweezer arm is by a tweezer head and a tweezer valve group At tweezer head is metallic conductor, and tweezer valve is divided into as outwardly and inwardly, the outside of tweezer valve is insulating materials, and the inside of tweezer valve is embedding The discharge paths being made of the first pin, electric discharge phonation unit and second pin, the first pin and second pin are metallic conduction Body, the first pin are connected with one end of electric discharge phonation unit, and second pin is connected with the other end of electric discharge phonation unit；

The electric discharge phonation unit includes rectifier bridge DB, filter capacitor C, driving circuit and piezoelectric buzzer HD, I.e. one end of the first pin is connected with an ac input end of rectifier bridge DB, and one end of second pin is another with rectifier bridge DB's A ac input end is connected, and the direct current output anode of rectifier bridge DB is connected with the anode of filter capacitor C, and the direct current of rectifier bridge DB is defeated Go out negative terminal with the cathode of filter capacitor C to be connected, the input terminal of driving circuit is correspondingly connected in parallel on the both ends of filter capacitor, driving electricity The output end on road is in parallel with the both ends of piezoelectric buzzer HD；

One end of tweezer head is exposed in the front end of tweezer arm, and the other end is embedded in inside tweezer valve, and with inside tweezer valve the The other end of one pin is connected；

The herringbone occlusion body is metallic conductor, including there are one occlusion portions and two opening portions, two of which to open Oral area is respectively embedded in the inside of tweezer valve, and is connected respectively with the other end of second pin in tweezer valve.

In normal use, between two tweezer heads of the tweezers that discharge ride over capacitance two pins, a discharge loop is formed, by Have impedance in discharge loop, the energy on capacitance can be consumed, will not ablation circuit board, in addition hand contact position be located at insulation Tweezer valve at, will not cause any harm to human body, and in electric discharge and drive piezoelectric buzzer sounding, to provide Warning.

Preferably, inside one of tweezer arm, contain the first pin, electric discharge phonation unit and second pin composition Discharge paths, and another tweezer arm then places the resistance or conducting wire of a pure electric discharge between the first pin and second pin.

The utility model has the beneficial effects that providing the tweezers with sounding instruction electric discharge, simple, reasonable for structure, structure is designed It builds conveniently, is not only able to carry out safety and nondestructive wound band sounding instruction electric discharge to capacitance, and electric appliance can be detected to practitioner When bring a kind of convenient and efficient working method.

Description of the drawings

In order to illustrate more clearly of utility model embodiment or technical solution, embodiment or technical solution will be described below Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the utility model compared with The explanation of exemplary embodiments structure composition or circuit is not making the creative labor for those of ordinary skill in the art Under the premise of, other drawings may also be obtained based on these drawings.

Fig. 1 is a kind of tweezers canonical schema of the utility model with sounding instruction electric discharge.

Fig. 2 is the example schematic of tweezers electric discharge phonation unit of the utility model with sounding instruction electric discharge.

Specific implementation mode

It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer Attached drawing in type embodiment is clearly and completely described the utility model technology composition, technical solution and embodiment, shows So, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on this practicality Embodiment in novel, other implementations obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.

The utility model is further illustrated in conjunction with the drawings and specific embodiments.

As shown in Figure 1 and Figure 2, respectively it is a kind of typical signal of tweezers of the utility model with sounding instruction electric discharge Figure, and electric discharge phonation unit example schematic.

Tweezers with sounding instruction electric discharge, including two tweezer arms 1 and a herringbone are engaged body 2, one of tweezer Arm 1 is made of a tweezer head 11 and a tweezer valve 12, and tweezer head 11 is metallic conductor, and tweezer valve 12 is divided into as outwardly and inwardly, The outside of tweezer valve 12 is insulating materials, and the inside of tweezer valve 12 is embedded with the first pin 121, electric discharge phonation unit 122 and second pin The discharge paths of 123 compositions, the first pin 121 and second pin 123 are metallic conductor, the first pin 121 and electric discharge sounding One end of unit 122 is connected, and second pin 123 is connected with the other end of electric discharge phonation unit 122；

The electric discharge phonation unit 122 includes rectifier bridge DB, filter capacitor C, driving circuit and piezoelectric buzzer HD, i.e. one end of the first pin 121 are connected with an ac input end of rectifier bridge DB, one end of second pin 123 and rectification Another ac input end of bridge DB is connected, and the direct current output anode of rectifier bridge DB is connected with the anode of filter capacitor C, rectifier bridge The direct current output negative terminal of DB is connected with the cathode of filter capacitor C, and the input terminal of driving circuit is correspondingly connected in parallel on filter capacitor C's The output end at both ends, driving circuit is in parallel with the both ends of piezoelectric buzzer HD；

One end of tweezer head 11 is exposed in the front end of tweezer arm 1, and the other end is embedded in inside tweezer valve 12, and with tweezer valve 12 The other end of internal first pin 121 is connected；

The herringbone occlusion body 2 is metallic conductor, including there are one occlusion portions and two opening portions, two of which to open Oral area is respectively embedded in the inside of tweezer valve 12, and is connected respectively with the other end of second pin 123 in tweezer valve 12.

It is clear that be as the tweezers another kind form with sounding instruction electric discharge, inside one of tweezer arm 1, Containing the discharge paths that the first pin 121, electric discharge phonation unit 122 and second pin 123 form, and another tweezer arm 1 then exists The resistance or conducting wire of a pure electric discharge are placed between first pin 121 and second pin 123.

The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model Limitation.If carrying out various changes and modifications to the utility model embodiment, but still in the spirit of the utility model and original Within then, it should be included within the claims of the utility model.

Claims

1. the tweezers with sounding instruction electric discharge, including two tweezer arms（1）It is engaged body with a herringbone（2）, it is characterized in that：

One of tweezer arm（1）By a tweezer head（11）With a tweezer valve（12）Composition, tweezer head（11）For metallic conduction Body, and tweezer valve（12）It is divided into as outwardly and inwardly, tweezer valve（12）Outside be insulating materials, tweezer valve（12）Inside be embedded with first Pin（121）, electric discharge phonation unit（122）And second pin（123）The discharge paths of composition, the first pin（121）With second Pin（123）For metallic conductor, the first pin（121）With electric discharge phonation unit（122）One end be connected, second pin （123）With electric discharge phonation unit（122）The other end be connected；

The electric discharge phonation unit（122）Including rectifier bridge DB, filter capacitor C, driving circuit and piezoelectric buzzer HD, That is the first pin（121）One end be connected with an ac input end of rectifier bridge DB, second pin（123）One end and rectification Another ac input end of bridge DB is connected, and the direct current output anode of rectifier bridge DB is connected with the anode of filter capacitor C, rectifier bridge The direct current output negative terminal of DB is connected with the cathode of filter capacitor C, and the input terminal of driving circuit is correspondingly connected in parallel on filter capacitor C's The output end at both ends, driving circuit is in parallel with the both ends of piezoelectric buzzer HD；

Tweezer head（11）One end it is exposed in tweezer arm（1）Front end, the other end is embedded in tweezer valve（12）Inside, and with tweezer valve （12）Internal first pin（121）The other end be connected；

The herringbone is engaged body（2）For metallic conductor, including there are one occlusion portion and two opening portions, two of which is open Portion is respectively embedded in tweezer valve（12）Inside, and respectively with tweezer valve（12）Second pin in the middle（123）The other end be connected.

2. the tweezers according to claim 1 with sounding instruction electric discharge, it is characterized in that：

One of tweezer arm（1）The first pin is contained in inside（121）, electric discharge phonation unit（122）And second pin （123）The discharge paths of composition, and another tweezer arm（1）Then in the first pin（121）With second pin（123）Between place one The resistance or conducting wire of a pure electric discharge.